jdubu wrote:
I use the Op Tech double sling and it works great for 2 cameras. Sling lengths can be adjusted and unclipped to become separate shoulder slings by replacing the shoulder harness with single shoulder pads.
The only drawback with any double harness is that if you are walking a lot, the cameras will tend to swing around a bit.
I too use the Optech Double Sling. I cannot praise it high enough.
Optech also have a strap that attaches to your waist belt loop, so when walking etc. the camera is held close to your body. Check out their website.